.foot {
  border-top: 1px solid #cecece;
  padding: 0;
  margin: 0;
  position: fixed;
  height: 40px;
  width: 100%;
  left: 0;
  right: 0;
  bottom: 0;
  li {
    margin:0;
    padding:0;
    display: inline-block;
    height:100%;
    list-style: none;
    font-size: 20px;
    text-align: center;
    width: 32%;
    color: #CECECE;
    &.selected {
      background: @footHighlightBg;
      color: @footHighlightColor;
    }
    .i-document {
      display: inline-block;
      background: url(../image/document.png) no-repeat;
      width: 25px;
      height: 21px;
    }
    .i-search {
      display: inline-block;
      background: url(../image/search.png) no-repeat;
      width: 24px;
      height: 24px;
    }
    .i-me {
      display: inline-block;
      background: url(../image/my.png) no-repeat;
      width: 23px;
      height: 25px;
    }
  }
}